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Improvement of 2,4‐dinitrophenylhydrazine derivatization method for carbon isotope analysis of atmospheric acetone
Author(s) -
Wen Sheng,
Yu Yingxin,
Guo Songjun,
Feng Yanli,
Sheng Guoying,
Wang Xinming,
Bi Xinhui,
Fu Jiamo,
Jia Wanglu
Publication year - 2006
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.2453
Subject(s) - chemistry , acetone , derivatization , isotope ratio mass spectrometry , mass spectrometry , isotopes of carbon , chromatography , fractionation , carbon fibers , reagent , isotope , gas chromatography , environmental chemistry , organic chemistry , total organic carbon , materials science , physics , quantum mechanics , composite number , composite material
Through simulation experiments of atmospheric sampling, a method via 2,4‐dinitrophenylhydrazine (DNPH) derivatization was developed to measure the carbon isotopic composition of atmospheric acetone. Using acetone and a DNPH reagent of known carbon isotopic compositions, the simulation experiments were performed to show that no carbon isotope fractionation occurred during the processes: the differences between the predicted and measured data of acetone‐DNPH derivatives were all less than 0.5‰. The results permitted the calculation of the carbon isotopic compositions of atmospheric acetone using a mass balance equation. In this method, the atmospheric acetone was collected by a DNPH‐coated silica cartridge, washed out as acetone‐DNPH derivatives, and then analyzed by gas chromatography/combustion/isotope ratio mass spectrometry (GC/C/IRMS). Using this method, the first available δ 13 C data of atmospheric acetone are presented. Copyright © 2006 John Wiley & Sons, Ltd.